Welding-tip.



E. G. LUENING.

WELDING TIP.

APPLICATION FILED Mmm/1. 1913.

1,107,429, Y Patented Aug. 18, 1914.

" STATES PATENT EUGENE G. LUENING, OF CHICAGO, ILLINOIS, ASSIGNOR T0DAVIS-BOURNONVUJLE COMPANY, OF NEW YORK, N. Y., AND CHICAGO, ILLINOIS, ACORPORATION 0F NEW YORK.

WELDING-TU.

Specification of Letters Iateiit pplication filed Hatch 24, 1913. SerialNo. 756,314.

T 0 all whom, it may concern Be it known that l, EUGENE G. LUENING, acitizen of the United States, residing at Chicago, county of Cook, Stateof Illinois, have made a certain new and useful lnventon inIVeIding-Tips, of which the following is a specification.

T his invention relates to welding tips.

The object of the invention is to provide a construction of tips usedfor oxy-acetylene or other gas mixture welding purpose which is simple,etlicient and economical, and wherein a uniformly neutral flame ismaintained While the tip is in use.

A further object is to provide a tip of the class referred to which maybe maintained cool While. in operation.

In the restricted sense, a further object is to provide a Water-cooledtip ot the nature referred to.

The invention consists substantially in the construction, combination,location and relation of parts, all as4 Will be more fully set forth, asshown in the accompanying drawing, and finally pointed outvin theappended claims'. l

Referring lto the accompanying dravving,-Figure 1 is ay view in centrallongitudinal section on the line 1, 1, Fig. 2, showing a welding tipembodying the principles of my invention. Fig. 2 is a similar view onthe line 2, 2, Fig. 1. Fig. 3 is a view in transverse section of thesame on the line 3, 3, Fig. 1.

In the use of tips for welding and similar purposes it is important, inorder to attain the best results, to maintain a uniformly neutral flame,that is, a llame that is p roduced by just exactly the proper proportionof oxygen and acetylene, or of other gases, as the case may be, tosecure complete combustion. rllhe use of such tips develops in tenseheat at the end of the tip Where the flame is maintained which heat, ofcourse, is conducted to the body of the tip and heats the constituentgases employed in producing llame with the result that the gas mixturevaries with variations in the heat to which they are thus subjected,

and hence there'is a variation in the flame.y

In order to overcome this objection l propose, in accordance vvith myinvention, to provide means for maintaining the tip body cool during thetime the tip is in use, and to this end, in the specific embodiment of'my curely invention which i have Selected nv innemen the principlesinvolved. l provide a jacket for the body of the tip and so constructand arrange the parts as to form a channel Way or space on each side ofthe tip body which communicate with each `other at one end `of the tipbody, and through which a cooling medium, such, for example, as watermay be circulated and which serves to maintain the tip body cool, thegas mixture uniform and the flame steady and constant.

In the drawing reference numeral 5, designates the tip body having thecentral lonn gitudinal bore 6, through which the mixed gases flow to theend of the .tip where the llame is produced and maintained. The constituent gases are admitted to the bore 6 through the openings 7, 8,respectively. At its extreme end the tip body is circumferentiallyreduced in diameter for a short distance, as shown, to form an annularchannel 9. 'llhe body of the tip 5 is milled od on opposite sidesthereof, as indicated at l0, 11, F igs. 1 and, the milled 0E portionsextending ioiii'the flame end of the tip, or the shoulder 12, thereofwhich is formed by turning down the end of the tip body to produce theannular channel 9, along the tip body toward the opposite end thereof tothe desired extent, and they terminate in a. shoulder 13 formed on anenlarged part 14e of the tip. This enlarged part is itself turned downor reduced in external diameter to form a shoulder l5.

1n racticethe body of the tip from the shoul er 13, to the shoulder 12,that is the milled portion of the tip is made longitudinally tapered.Fitted over the milled'portion of the tip body is a cap or sleeve 16,tapered to correspond to the taper of the tip body, shoulder 15, thejoint at this point being soldered, or otherwise securely sealed and theother end titting tightly over the extreme end of the reduced portion 17of the tip, and soldered thereto or otherwise sesealed at this point,said cap or sleeve having to lit the extreme end of the tip body, thellame being maintained at the outer end surface of the cap. 'lhe enlarportion 1d' a hole or' opening 18 therethroughA or sleeve 16, 31,

is made to fit tightly over those portions of the exterior surface ofthe tip body which have not been milled, but chambers 23, 24, are leftrespectively on opposite sides of the tip body between the same and thecap or sleeve. .It will be seen that these chambers are thus made toycommunicate respectively, at one end with the ports or openings 21, 22,while at their other ends said chambers are in communication with eachother through.

the annular channel 9. This aHords a very simple, efficient andeconomical structure for permitting a cooling medium to be circulatedaround the 'body of the tip, such medium entering the port or opening21, for ,instance and4 passing through channel 19, chamber Q3, channel9, chamber 24, channel QOand port 22, and enables me to thus maintainthe .tip body cool while in use, thereby maintaining the gas mixture,uniform and the flame steady and constant.

Having now set forth the object and nature of my invention and aconstruction embodying the principles thereof, what I claim as new anduseful, and of my own invention, and desire to secure by Letters Patentis- 1. In a welding tip, a tip body having a longitudinal centralpassage therethrough for the flame gases, and auxiliary longitudinalpassages respectively arranged on opposite sides of the central passage,for a cool-- ing medium, and a jacket surrounding a portion of the' tipbody and coperating with said body portion to form separate eham berswith which said auxiliary passages 1espectively communicate, saidchambers communicating with each other at the tip end of'said bodyportion.

Q. In a welding tip, a body having a longitudinal passage therethrough,said tip being reduced 1n thickness on opposite sides thereof, and ajacket for said body forming sepaof the body to form separated chambersandv an annular passage communicating therebetween,` said body havinginlet and outlet openings for a cooling medium respectivelycommunicating with said chambers.

4. I n a. welding tip, a body having an enlarged part formed with inletand Vout-let ducts, opposite sides of said body being cuty away. the endof said body being reduced in diameter, and ajacket fitting. over thereduced end and cut away side portions of the tip, to form separatedintercommunicating chambers. said ducts respectively communieating withsaid chambers.

5. In a welding tip a body having an enlarged part with inlet and outletduets formed therein. said enlarged part reduced to form aperipheralshoulder, the opposite sides of the body being cut away from saidshoulder to the end ofthe body, and a jacket circular in cross sectionfitting `over the cut away side portions of the body and secured to saidshoulder. the body being reduced atits extremity to form an annularchannel.

In witness whereof I have hereunto set my hand this 14th day of March,1918`l in the presence of the subscribing witnesses.

EUGENE G. LUENING lVitnesses LEMUEEM. SHIELDS,

ERNEST I-I. JOHNSON.

